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Differential D2046 Diff 6838 source/blender/nodes/shader/nodes/node_shader_normal_map.c

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source/blender/nodes/shader/nodes/node_shader_normal_map.c

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for (int j = 0; j < 3; j++) for (int j = 0; j < 3; j++)
out[0]->vec[j] = vecIn[0] * T[j] + vecIn[1] * B[j] + vecIn[2] * N[j]; out[0]->vec[j] = vecIn[0] * T[j] + vecIn[1] * B[j] + vecIn[2] * N[j];
interp_v3_v3v3(out[0]->vec, N, out[0]->vec, strength); interp_v3_v3v3(out[0]->vec, N, out[0]->vec, strength);
if (shi->use_world_space_light_params)
mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEWINV_MATRIX), out[0]->vec);
break; break;
case SHD_NORMAL_MAP_OBJECT: case SHD_NORMAL_MAP_OBJECT:
case SHD_NORMAL_MAP_BLENDER_OBJECT: case SHD_NORMAL_MAP_BLENDER_OBJECT:
mul_mat3_m4_v3((float (*)[4])RE_object_instance_get_matrix(shi->obi, RE_OBJECT_INSTANCE_MATRIX_LOCALTOVIEW), vecIn); if (shi->use_world_space_light_params)
mul_mat3_m4_v3((float (*)[4])RE_object_instance_get_matrix(shi->obi, RE_OBJECT_INSTANCE_MATRIX_OB), vecIn);
else
mul_mat3_m4_v3((float (*)[4])RE_object_instance_get_matrix(shi->obi, RE_OBJECT_INSTANCE_MATRIX_LOCALTOVIEW), vecIn);
interp_v3_v3v3(out[0]->vec, N, vecIn, strength); interp_v3_v3v3(out[0]->vec, N, vecIn, strength);
break; break;
case SHD_NORMAL_MAP_WORLD: case SHD_NORMAL_MAP_WORLD:
case SHD_NORMAL_MAP_BLENDER_WORLD: case SHD_NORMAL_MAP_BLENDER_WORLD:
mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEW_MATRIX), vecIn); if (!shi->use_world_space_light_params)
mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEW_MATRIX), vecIn);
interp_v3_v3v3(out[0]->vec, N, vecIn, strength); interp_v3_v3v3(out[0]->vec, N, vecIn, strength);
break; break;
} }
brechtUnsubmitted
Done
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Not sure why this checks for GPU_material_use_new_shading_nodes.

The purpose of this feature was to support Blender-style normal map encoding and a more standard normal map encoding. I think that feature is useful for both Blender Internal and Cycles?

Though I guess that's not really an issue with this world space stuff specifically and doesn't need to be solved here.

brecht: Not sure why this checks for `GPU_material_use_new_shading_nodes`. The purpose of this feature…
a.romanovAuthorUnsubmitted
Not Done
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I agree. If necessary, this can be done in another patch.

a.romanov: I agree. If necessary, this can be done in another patch.
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switch (nm->space) { switch (nm->space) {
case SHD_NORMAL_MAP_TANGENT: case SHD_NORMAL_MAP_TANGENT:
a.romanovAuthorUnsubmitted
Not Done
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Of cource

a.romanov: Of cource
GPU_link(mat, "node_normal_map", GPU_attribute(CD_TANGENT, nm->uv_map), negnorm, realnorm, &realnorm); GPU_link(mat, "node_normal_map", GPU_attribute(CD_TANGENT, nm->uv_map), negnorm, realnorm, &realnorm);
if (GPU_material_use_world_space_light_params(mat)) {
GPU_link(mat, "vec_math_mix", strength, realnorm, negnorm, &out[0].link);
/* for uniform scale this is sufficient to match Cycles */
GPU_link(mat, "direction_transform_m4v3", out[0].link, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &out[0].link);
GPU_link(mat, "vect_normalize", out[0].link, &out[0].link);
return true;
}
break; break;
case SHD_NORMAL_MAP_OBJECT: case SHD_NORMAL_MAP_OBJECT:
case SHD_NORMAL_MAP_BLENDER_OBJECT: case SHD_NORMAL_MAP_BLENDER_OBJECT:
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_LOC_TO_VIEW_MATRIX), &realnorm); if (GPU_material_use_world_space_light_params(mat))
brechtUnsubmitted
Done
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This code should have been removed I think?

brecht: This code should have been removed I think?
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_OBJECT_MATRIX), &realnorm);
else
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_LOC_TO_VIEW_MATRIX), &realnorm);
break; break;
case SHD_NORMAL_MAP_WORLD: case SHD_NORMAL_MAP_WORLD:
case SHD_NORMAL_MAP_BLENDER_WORLD: case SHD_NORMAL_MAP_BLENDER_WORLD:
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_VIEW_MATRIX), &realnorm); if (!GPU_material_use_world_space_light_params(mat))
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_VIEW_MATRIX), &realnorm);
break; break;
brechtUnsubmitted
Not Done
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Can this be implemented as:

if (GPU_material_use_new_shading_nodes || GPU_material_use_world_space_light_params) {
   .. world space ..
}
else {
  .. camera space ..
}

Or is there a good reason for Cycles and Blender Internal to behave differently besides the camera/world space difference?

brecht: Can this be implemented as: ``` if (GPU_material_use_new_shading_nodes ||…
} }
} }
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